Question

QUESTION 3

1. The afferent division of the nervous system is responsible for

   		processing information.
   		sending signals from receptors to the CNS.
   		somatic motor information, only.
   		sending motor signals to effectors.

2. You are looking at a neuron under a microscope. All parts of this neuron (including its dendrites and synaptic knobs) are contained within the CNS. What type of neuron is this?

   		a motor neuron.
   		an interneuron.
   		a sensory neuron.
   		an effector.

3. QUESTION 18

4. The axolemma is that part of a neuron’s _________________ that encloses the axon.

   nucleus

   		synaptic knob
   		rough endoplasmic reticulum
   		mitochondria
   		plasma membrane

5. Action potentials are normally carried in one direction from the axon hillock to the axon terminals. By using an electronic probe you experimentally depolarize the AXON HILLOCK to threshold. What do you expect? Explain what happens in detail. 1-4 senteces max please

Answer 1

Question3-1

the afferent division of the nervous system is responsible for sending signals from receptors to CNS

Question3-2

All parts of this neuron (including its dendrites and synaptic knobs) are contained within the CNS -INTERNEURON

Question 18

The axolemma is that part of a neuron’s __PLASMA MEMBRANE_______________ that encloses the axon.

Question 18-2

The action potential follows an ALL OR NONE phenomenon.The axon hillock has large number of ion channels than other parts. So when an threshold stimulus is applied action potebtial develops and it is transmitted to axon terminals